Product Name: China Top Quality Tundish Metering Nozzles for Continuous Casting Model NO.: G-5 Material: Zirconia Shape: Block Type: Refractory Material Feature: Long Time Materials Refractoriness (?): 1770< Refractoriness< 2000 B.D.: 4.6 g/cm3 CCS: 80 MPa Thermal Shock Resistance: 5 Times Trademark: sinocean Transport Package: Wooden Case Specification: Zirconia content: 90% Origin: China HS Code: 69039000 Product Description Tundishmetering nozzles for continuous steel casting are made of zirconia and baddeleyite,formed by high tension and baked in high temperature when stablized by special technology. Different sizes and types of zirconia metering nozzles are designed and made according to users' different steel-making conditions and requirements.ApplicationIn casting steelzirconia ceramic metering nozzlesare mainly used in successive-casting intermediary small billet, big billet, rectangle billet and small board adobes.Features1.Low expansion, supprior resistance to erosion/corrosion and thermal shock cycling.2.Long and extended casting sequence times3. Controlled and stable casting speed4.Resistance to oxygen lancingchangeless diameter and lasing long.Main properties of zirconia insertBrandG-1G-2G-3G-4G-5G-6G-7G-8Chemical composition(%)≥ZrO2+HfO27075808590939393Bulk density(g/cm3)≥3.84.04.24.44.64.95.15.2Apparent porosity(%) ≤2222202020151310Cold crushing strength(Mpa) ≥80808080809090100Refractoriness(°C)≥17901790179017901790179017901790Thermal shock resistance (cycles)(1100°C water quenching)≥55555555Main properties of ziconia metering nozzle(alumina sleeve)BrandGD-1GD-2GD-3GD-4Chemical composition(%)≥Al2O365707075C55Bulk density(g/cm3)≥2.62.62.72.7Apparent porosity(%) ≤23232222Cold crushing strength(Mpa) ≥40404545
